arch/arm/boot/dts/allwinner/sun7i-a20-wits-pro-a20-dkt.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/allwinner/sun7i-a20-wits-pro-a20-dkt.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/allwinner/sun7i-a20-wits-pro-a20-dkt.dts
Extension
.dts
Size
4615 bytes
Lines
210
Domain
Architecture Layer
Bucket
arch/arm
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

/dts-v1/;
#include "sun7i-a20.dtsi"
#include "sunxi-common-regulators.dtsi"

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/irq.h>

/ {
	model = "Wits Pro A20 DKT";
	compatible = "wits,pro-a20-dkt", "allwinner,sun7i-a20";

	aliases {
		serial0 = &uart0;
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};

	mmc3_pwrseq: pwrseq {
		compatible = "mmc-pwrseq-simple";
		reset-gpios = <&pio 7 9 GPIO_ACTIVE_LOW>; /* PH9 WIFI_EN */
	};
};

&cpu0 {
	cpu-supply = <&reg_dcdc2>;
};

&ehci0 {
	status = "okay";
};

&ehci1 {
	status = "okay";
};

&gmac {
	pinctrl-names = "default";
	pinctrl-0 = <&gmac_rgmii_pins>;
	phy-handle = <&phy1>;
	phy-mode = "rgmii";
	status = "okay";
};

&i2c0 {
	status = "okay";

	axp209: pmic@34 {
		reg = <0x34>;
		interrupt-parent = <&nmi_intc>;
		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
	};
};

&i2c1 {
	status = "okay";
};

&i2c2 {
	status = "okay";
};

#include "axp209.dtsi"

&gmac_mdio {
	phy1: ethernet-phy@1 {
		reg = <1>;
	};

Annotation

Implementation Notes